British Independent Garage of the Year Awards 2027 — Consumer Choice Award

Entries for the British Independent Garage of the Year Awards are open!

Please vote for A1

in the Consumer Choice Award for independent garages.

Porsche-Certified Diagnostics and Maintenance

At A1 German Car Specialists, our workshop is outfitted with the latest Porsche PIWIS4 diagnostic technology - the current benchmark in factory-level diagnostics. This advanced system is seamlessly integrated with Porsche’s official online portal and updated daily, ensuring our access to real-time technical data, diagnostic tools, and software updates straight from the Porsche factory in Germany.

Book a Porsche Service

German Car Repair Specialists

Cavendish Rd, Stevenage

Whether you need a repair from a simple light bulb change to the most complex gearbox rebuilds, our team of highly skilled technicians can first diagnose the problem with your BMW, Audi, Seat, Skoda, Volkswagen, Mercedes or Mini and then provide you with a competitive quote to undertake the work.

Learn more about repairs...

Hybrid / EV Car Servicing & Repair

Full electric vehicle or hybrid maintenance

Here at A1, we offer vehicle servicing, maintenance and MOTs for a wide range of hybrid / EV vehicles. Our friendly hybrid car / EV specialists have been trained to work on these cars to safe standards.

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BMW Servicing

A BMW service can require some extra special attention from a qualified mechanic. Most models now feature Condition Based Service (CBS) - an adaptation of BMW's Service Interval Indicator. OE parts are used when we service your vehicle to ensure you retain your manufacturer's warranty.

Book a BMW service

Mercedes Servicing

From £160.00+VAT

If you're looking for a well-established Mercedes Specialist in Stevenage who specialises in servicing and repairing Mercedes vehicles, then look no further - we have the knowledge and expertise to undertake work required to prolong the life of your Mercedes car or van, whilst providing you with a professional, friendly service.

Book a Mercedes service

Our Reception

and Waiting Area...

Our main reception and waiting area is on the main road, with customer parking to the side. While you wait, enjoy great coffee, Wi-Fi, USB charging points, TV and more.

Find Us...

Porsche Diagnostics & Repairs

Porsche Partner Network

From Porsche SUVs to Panameras, Boxsters and 911s. Our trained technicians service all models of Porsche in line with Porsche guidelines and use genuine Porsche or OEM-approved parts.

Porsche Service

Tyres Supplied & Installed

Competitive prices on Tyres

With a comprehensive range of tyres held in stock from leading brands to budget including high-performance tyres, we can cater to the needs of all our customers at competitive prices.

Diagnostics

From £85+VAT

Diagnostic work can be time consuming and expensive. It is for this reason that it is best to use a specialist with the latest equipment to ensure a cost-effective solution to your vehicle faults.

More about Diagnostics...

MOT Testing

£54

Our specialist MOT testers will ensure your vehicle is fully inspected and meets the safety requirements, set out by the DVSA. Save time and money when you book your MOT and Service together online.

Independent BMW & German Car Specialists in Stevenage

Servicing-wise, you're likely to struggle to find someone better equipped than us - with full dealership-spec diagnostic systems, seven service bays and highly trained BMW, Mercedes, VW and Audi staff, you can be sure your prestige car is in the right hands. We treat every car that comes in with the utmost care and attention. Whether it's servicing your SMG gearbox or that all-important A & B service, don't be afraid to let us do it; it won't affect your warranty, and we use the same equipment and parts as main dealers at a fraction of the cost.

Also, if your car didn't come with optional extras such as Bluetooth connectivity, or even something as big as iDrive, we can retrofit these for you to dealer standards with all the correct programming, thanks to our latest dealer tool and software reprogramming capabilities.

Vehicle Servicing

MOTs

Vehicle Diagnostics

Vehicle Repairs

Online Fault Questionnaire

BMW Motorbikes

Vehicle servicing for...

BMW and Mini Servicing

Mercedes Servicing

Volkswagen Servicing

Porsche Servicing

Audi Servicing

Skoda Servicing

Seat Servicing

Reena Patel

Google - July 2019

I had my car serviced here and was really impressed with the extremely smooth customer care received! A great, reliable place to do to have car serviced or have work done. Thank you very much!

Steven B

Google - August 2025

Honestly can’t rate these guys highly enough, quality work. Such an amazing and knowledgeable team, always willing to help and really go the extra mile. Will always use these guys with my BMWs.

Akshay Patel

Google - July 2019

Took my car for service and part changes, the staff were brilliant, knew what they were doing and talking about. Talked me through what needed doing and what didn’t in detail. The price was great. The car was done in the time mentioned (actually slightly earlier which was convenient for me) would highly recommend these guys for any work! This is my second time there with the same car and am still very much impressed. Thanks to all the A1 team.

Paul Marshall

Google - August 2025

Steve and the guys at A1 are very knowledgeable. I took my M5 in with a quirky electrical issue, they diagnosed it, repaired it and I had it back the same afternoon.

Stewart Mccarthy

Google - May 2025

Steve and the team at A1 BMW were incredibly helpful and understanding when I had a big problem with my BMW 535D. They kept me informed throughout the whole process with feedback via email and phone, and, unusually for a garage, documented pictures of the repair process step by step and gave me great advice afterwards. They never pressured me into having work done that I did not wish to be carried out, and made me feel extremely welcome. I will certainly use them again in the future. 5 Stars.

John Earl

Google - Dec 2025

A really professional operation. From the polite and attentive welcome through each step of the service you are kept informed of key steps and recommendations. On time, efficient and transparent.

Joey Tamizi

Google - August 2025

Very knowledgeable and friendly technicians will explain all the work being carried out in detail and give you a good understanding of what is being done. Fair pricing for specialist work. I will be coming back.

Prashan Thiagarajah

Google - May 2019

First visit to A1BN. Got referred to Steve and his team and what a great job they’ve done on my classic E39 M5... resolved a stuck rear door and undertook a detailed assessment of the car and recommended all the suspension and brake components be changed... actual price came in a lot less than what was quoted and car feels like new. All parts are BMW OEM too... with the M5 parts being hard to source, this wasn’t an issue for Steve. Great job guys.

Tim Batsford

Google - May 2023

Great communication. Let me know the issues found and costs every step of the way and saved me hundreds compared to what BMW had quoted me. Fantastic service. Would highly recommend!